java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.justforyou.bestnarutosongs/com.justforyou.bestnarutosongs.SongsListActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference

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    • java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.justforyou.bestnarutosongs/com.justforyou.bestnarutosongs.SongsListActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2444) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2613) at android.app.ActivityThread.access$800(ActivityThread.java:181) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1473) at android.os.Handler.dispatchMessage(Handler.java:111) at android.os.Looper.loop(Looper.java:194) at android.app.ActivityThread.main(ActivityThread.java:5649) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference at android.support.v7.app.AppCompatDelegateImplBase.<init>(AppCompatDelegateImplBase.java:72) at android.support.v7.app.AppCompatDelegateImplV7.<init>(AppCompatDelegateImplV7.java:146) at android.support.v7.app.AppCompatDelegateImplV11.<init>(AppCompatDelegateImplV11.java:28) at android.support.v7.app.AppCompatDelegateImplV14.<init>(AppCompatDelegateImplV14.java:41) at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:193) at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:173) at android.support.v7.app.AppCompatActivity.getDelegate(AppCompatActivity.java:511) at android.support.v7.app.AppCompatActivity.findViewById(AppCompatActivity.java:183) at com.justforyou.bestnarutosongs.SongsListActivity.<init>(SongsListActivity.java:23) at java.lang.reflect.Constructor.newInstance(Native Method) at java.lang.Class.newInstance(Class.java:1606) at android.app.Instrumentation.newActivity(Instrumentation.java:1071) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2434)

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